Well, this is the sort of thing I find thrilling. Millions wouldn't but I do. I planted Ramsons aka Wild Garlic (Allium ursinum) in this old porcelain planter on the patio. I planted them in the form of bulbs several years ago and they have begun to propogate themselves on the ground around the planter. The emerging leaves are clearly visible, so too around another planter further down the garden.

 In the wild Ramsons carpet damp shady areas particularly on the westerly side of Britain. They spread by bulbils, offsets and seeds but this is the first year they have appeared around the planters. Why? Some set of atmospheric conditions they have found favourable? Or perhaps seeds and/or bulbils have matured by now into bulbs?